66571134 has 16 divisors (see below), whose sum is σ = 152162688. Its totient is φ = 19020312.

The previous prime is 66571123. The next prime is 66571147. The reversal of 66571134 is 43117566.

It is a junction number, because it is equal to n+sod(n) for n = 66571095 and 66571104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792472 + ... + 792555.

It is an arithmetic number, because the mean of its divisors is an integer number (9510168).

Almost surely, 2^66571134 is an apocalyptic number.

66571134 is an abundant number, since it is smaller than the sum of its proper divisors (85591554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66571134 is a wasteful number, since it uses less digits than its factorization.

66571134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585039.

The product of its digits is 15120, while the sum is 33.

The square root of 66571134 is about 8159.1135547926. The cubic root of 66571134 is about 405.2863574573.

The spelling of 66571134 in words is "sixty-six million, five hundred seventy-one thousand, one hundred thirty-four".